ANSYS四辊精轧机带板轧制刚度的理论和数值计算

摘要在轧钢的生产过程中，如果轧机没有足够的刚性，那么在轧制的过程中将会产生较大的误差，是影响板材质量和成材率的一个重要因素，本文的主要工作就是计算四辊精轧机带板轧制的刚度，并分析影响轧机刚度的因素。65353

本文先是对四辊精轧机工作机座部分进行理论计算，并用计算机编程，算出不同轧制力下的弹性位移，并将这组数据连成曲线，求出斜率即为理论刚度；同时运用ANSYS、PROE等软件建立弹塑性有限元模型来仿真模拟四辊精轧机带板轧制过程，并进行计算分析，分析出特定轧制力下的位移、应力、应变等，进而计算出刚度，其计算结果与理论计算值基本相近，证明了该模型的准确性和可靠性。

毕业论文关键词四辊精轧机有限元刚度影响因素编程

毕业设计说明书（论文）外文摘要

Title The theoretical calculation and numerical simulation of stiffness of 4-high finishing mill during the flat rolling of plate and strip

Abstract

The rigidity of rolling mill is a widespread problem in rolling production process. It affects directly plate quality and its yield when the rolling hasn’t enough stiffness. The main mission of the article is to figure out the stiffness of 4-high finishing during the flat rolling of plate and strip, and then make out the influencing factors of the stiffness.

In this article, the theoretical value of stiffness is firstly analyzed with theoretical calculation by using computer programming. Then the elastic-plastic FEM model to develop with the software ANSYS and PROE simulates the rolling process. And the working stand of this mill is analyzed for stress, displacement and rigidity. The result that numerical simulation is basically close to the theoretical value proves the model’s accuracy and dependability.

Keywords 4-high finishing mill FEM stiffness influencing factors computer programming

1 绪论 1

1.1 课题背景 1

1.2 课题来源及研究背景 1

1.3 本文的主要工作 2

2 四辊精轧机的结构分析 2

2.1四辊精轧机的结构 2

2.2 四辊精轧机轧制刚度分析理论 8

2.3 实际生产中常遇到的问题分析 9

3 带板轧制刚度的理论计算 9

4 带板轧制过程的数值模拟 18

4.1 有限元的基本思想 18

4.2 有限元求解步骤 19

4.3 前处理 20

4.3.1主要材料的性能与参数 20

4.3.2模型建立 21

4.4 求解计算 22

4.4.1离散 22

4.4.2约束 24

4.4.3加载 26

4.4.4求解 33

4.5 结果处理与分析 37

小结 38

致谢 39

参考文献 40

附录I 42

附录II ANSYS四辊精轧机带板轧制刚度的理论和数值计算:http://www.youerw.com/wuli/lunwen_72945.html